An aluminum wire of unknown cross section has diameter of 0.635 cm and a resistance of 0.28ohm. If the wire is drown through a series of dies until its diameter is reduced to 0.127 cm. What is the resistance of the length conductor 250 ohm       175 ohm       185 ohm       200 ohm

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 19.9 Q. When they are…

A:

Q: At 20°C, the carbon resistor in an electric circuit connected to a 7.3-V battery has a resistance of…

A: Given data, initial temperature T1 = 20oC Final temperature T2 = 75oC Resistance at 20oC is R1 =…

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 16.4 Q. When they are…

A:

Q: r” measures temperature by measuring the change in resistance of a conductor. A certain resistance…

A: We know that the relationship between the  resistance and temperature is given as  Rt= R01+α∆T…

Q: Three resistors are in parallel. Their combined resistance is 5.0 ohms. One has a resistance of 10…

A:

Q: total current

A:

Q: A certain wire has a resistance 7 Ω.  What is the resistance of a second wire, made of the same…

A:

Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: Step 1:Step 2:Step 3:Step 4:

Q: A given copper wire has a resistance of 5.02 Ω at 20.0°C while a tungsten wire of the same diameter…

A:

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 19.7 Q. When they are…

A:

Q: At 20°C, the carbon resistor in an electric circuit connected to a 3.5-V battery has a resistance of…

A:

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 18.0 . When they are…

A: Given: Req(series) = 18.0ΩReq(parallel)=3.75 Ω

Q: The sketch shows a circuit with two resistors and a battery. Which of the following statements is…

A: Given,R1 and R2 are parallel o each other,1) The potential drop across R1V1 = I1R1The potential drop…

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.